Presentation of the economic upswing in the GDR, emphasizing the discovery of the process for the production of high-temperature lignite coke and the commissioning of the Lauchhammer large-scale coking plant.
2005
1977
1981
2017
1972
1991
1974
2000
2013
1998
1969
2012
1956
2002
2024
2021
1996